Give kids a concrete grasp of percentages...with hands-on tiles that make concepts incredibly easy to see and understand! The tiles are color-coded and perfectly related in size, so it’s easy to see how ten 10% tiles add up to 100%! You can even use them in combination with our fraction and decimal tile sets to help children visualize and compare equivalent values! Set includes 51 tiles in a 10 3/4" storage tray.